Burner



FIG. 1 is a perspective view of a burner showing our new design;

FIG. 2 is a additional perspective thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is an exploded front elevational view thereof; and,

FIG. 6 is an additional front elevational view thereof. 

The ornamental design for a burner, as substantially shown and described. 